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From:   Akhil P Oommen <akhilpo@codeaurora.org>
To:     freedreno <freedreno@lists.freedesktop.org>,
        dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org,
        Rob Clark <robdclark@gmail.com>
Cc:     Douglas Anderson <dianders@chromium.org>,
        Matthias Kaehlcke <mka@chromium.org>,
        Jordan Crouse <jordan@cosmicpenguin.net>,
        Jonathan Marek <jonathan@marek.ca>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@somainline.org>,
        Bjorn Andersson <bjorn.andersson@linaro.org>,
        Daniel Vetter <daniel@ffwll.ch>,
        David Airlie <airlied@linux.ie>,
        Iskren Chernev <iskren.chernev@gmail.com>,
        Konrad Dybcio <konrad.dybcio@somainline.org>,
        Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>,
        Sean Paul <sean@poorly.run>,
        Sharat Masetty <smasetty@codeaurora.org>,
        linux-kernel@vger.kernel.org
Subject: [PATCH v4 2/3] drm/msm/a6xx: Use rev to identify SKU
Date:   Fri, 30 Jul 2021 01:21:24 +0530
Message-Id: <20210730011945.v4.2.I286ef007fcadd9e6ee3b2c0ad948f990735f9610@changeid>
In-Reply-To: <1627588286-30520-1-git-send-email-akhilpo@codeaurora.org>
References: <1627588286-30520-1-git-send-email-akhilpo@codeaurora.org>
Precedence: bulk

Use rev instead of revn to identify the SKU. This is in
preparation to the introduction of 7c3 gpu which won't have a
revn.

Signed-off-by: Akhil P Oommen <akhilpo@codeaurora.org>
---

Changes in v4:
- Move adreno_cmp_rev() here to fix compilation

 drivers/gpu/drm/msm/adreno/a6xx_gpu.c      | 11 +++++------
 drivers/gpu/drm/msm/adreno/adreno_device.c | 16 ++++++++++------
 drivers/gpu/drm/msm/adreno/adreno_gpu.h    |  4 ++++
 3 files changed, 19 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index 183b9f9..0da1a66 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -1675,11 +1675,11 @@ static u32 a618_get_speed_bin(u32 fuse)
 	return UINT_MAX;
 }
 
-static u32 fuse_to_supp_hw(struct device *dev, u32 revn, u32 fuse)
+static u32 fuse_to_supp_hw(struct device *dev, struct adreno_rev rev, u32 fuse)
 {
 	u32 val = UINT_MAX;
 
-	if (revn == 618)
+	if (adreno_cmp_rev(ADRENO_REV(6, 1, 8, ANY_ID), rev))
 		val = a618_get_speed_bin(fuse);
 
 	if (val == UINT_MAX) {
@@ -1692,8 +1692,7 @@ static u32 fuse_to_supp_hw(struct device *dev, u32 revn, u32 fuse)
 	return (1 << val);
 }
 
-static int a6xx_set_supported_hw(struct device *dev, struct a6xx_gpu *a6xx_gpu,
-		u32 revn)
+static int a6xx_set_supported_hw(struct device *dev, struct adreno_rev rev)
 {
 	u32 supp_hw = UINT_MAX;
 	u16 speedbin;
@@ -1714,7 +1713,7 @@ static int a6xx_set_supported_hw(struct device *dev, struct a6xx_gpu *a6xx_gpu,
 	}
 	speedbin = le16_to_cpu(speedbin);
 
-	supp_hw = fuse_to_supp_hw(dev, revn, speedbin);
+	supp_hw = fuse_to_supp_hw(dev, rev, speedbin);
 
 done:
 	ret = devm_pm_opp_set_supported_hw(dev, &supp_hw, 1);
@@ -1785,7 +1784,7 @@ struct msm_gpu *a6xx_gpu_init(struct drm_device *dev)
 
 	a6xx_llc_slices_init(pdev, a6xx_gpu);
 
-	ret = a6xx_set_supported_hw(&pdev->dev, a6xx_gpu, info->revn);
+	ret = a6xx_set_supported_hw(&pdev->dev, config->rev);
 	if (ret) {
 		a6xx_destroy(&(a6xx_gpu->base.base));
 		return ERR_PTR(ret);
diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
index 6dad801..7e6fafe 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_device.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
@@ -8,8 +8,6 @@
 
 #include "adreno_gpu.h"
 
-#define ANY_ID 0xff
-
 bool hang_debug = false;
 MODULE_PARM_DESC(hang_debug, "Dump registers when hang is detected (can be slow!)");
 module_param_named(hang_debug, hang_debug, bool, 0600);
@@ -325,6 +323,15 @@ static inline bool _rev_match(uint8_t entry, uint8_t id)
 	return (entry == ANY_ID) || (entry == id);
 }
 
+bool adreno_cmp_rev(struct adreno_rev rev1, struct adreno_rev rev2)
+{
+
+	return _rev_match(rev1.core, rev2.core) &&
+		_rev_match(rev1.major, rev2.major) &&
+		_rev_match(rev1.minor, rev2.minor) &&
+		_rev_match(rev1.patchid, rev2.patchid);
+}
+
 const struct adreno_info *adreno_info(struct adreno_rev rev)
 {
 	int i;
@@ -332,10 +339,7 @@ const struct adreno_info *adreno_info(struct adreno_rev rev)
 	/* identify gpu: */
 	for (i = 0; i < ARRAY_SIZE(gpulist); i++) {
 		const struct adreno_info *info = &gpulist[i];
-		if (_rev_match(info->rev.core, rev.core) &&
-				_rev_match(info->rev.major, rev.major) &&
-				_rev_match(info->rev.minor, rev.minor) &&
-				_rev_match(info->rev.patchid, rev.patchid))
+		if (adreno_cmp_rev(info->rev, rev))
 			return info;
 	}
 
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
index 8dbe0d1..a368a16 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
@@ -42,6 +42,8 @@ struct adreno_rev {
 	uint8_t  patchid;
 };
 
+#define ANY_ID 0xff
+
 #define ADRENO_REV(core, major, minor, patchid) \
 	((struct adreno_rev){ core, major, minor, patchid })
 
@@ -141,6 +143,8 @@ struct adreno_platform_config {
 	__ret;                                             \
 })
 
+bool adreno_cmp_rev(struct adreno_rev rev1, struct adreno_rev rev2);
+
 static inline bool adreno_is_a2xx(struct adreno_gpu *gpu)
 {
 	return (gpu->revn < 300);
-- 
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